Installing cygnus-ngsi with RPM (CentOS/RedHat)

Simply configure the FIWARE release repository if not yet configured:

sudo wget -P /etc/yum.repos.d/ https://nexus.lab.fiware.org/repository/raw/public/repositories/el/7/x86_64/fiware-release.repo

And use your applications manager in order to install the latest version of cygnus-ngsi:

sudo yum install cygnus-ngsi

The above will install cygnus-ngsi at /usr/cygnus/, together with cygnus-common (it contains all the common dependencies to all Cygnus agents, NGSI agent included).